Combination inlay and orthodontia clamp



L. P. WAGNER.

COMBiNATION INLAY AND ORTHODON'TIA CLAMP.

APPLICATION FILED 1AN.2,1919.

1 348, 257. Patented Aug. 3, 1920.-

` 272 7l 4 2 I' i nnnnnnnmnnnnn nnnr nuaukws UNITED sTA'lEzs LoUI's P. WAGNER, or MILWAUKEE, wisconsin. f

COMBINATION INLAY AND ORTHODONTIA CLAMP.

Specification of Letters Patent.

Applieatin-mea January 2, 1919. seriai No. 269,239.

To all whom t may concern.'

Be it known that I, Louis P. WAGNER, a citizen of the United States, residing at Milwaukee, county of Milwaukee, .and State of Wisconsin, have kinvented new and useful Improvements in Combination Inlay and Orthodontia Clamps, of which the following is a specification. A

My'nvention relates to improvements in dental clamps, with particular reference to that'class of clamps known as orthodontia clamps. t

The object of my invention is toprovide means whereby the holder may be adjusted to the tooth and supported `substantially-'at a tangent to a circle within which the tooth projects, the holder tending Vto remain in .such position with considerable stability, instead ofA projecting outwardly from the -tooth at right angles to the jaw, andin a loosely swinging'position, as has heretofore been the case. In the ,clamps of this type, as Vheretofore constructed, Ythe holder tends to' assume a position atiright anglesy to `the jaw, but freely swings from sideto side under pressure, and greatly interfereswith the lwork of the dentist. This 'isparticularly Y true lin orthodontia work where it is necessary to hold the endportions of the band-in actual contact with each other while the band is being drawn around the tooth andadjusted and shaped preparatory to the soldering operation. It is well knownthat orthodontia bands .mustA have ltheir ends thus soldered together inv order to 4utilize them as lan anchorage for retaining bows Aor other tensionor compression members which draw orpress thetooth in place. My

improved holder differs from those. em-

5 along tangential lines Withone of the end ortions bent at an acute angle, contacting 'with the tooth in close proximity .toi the apex of such angle on one side thereof and with theopposing end portion on :the opposite side thereof while the band is being conformedto the tooth, whereas in holders for inlay bands or matricesthis vis not at all essential, and the ends `of a .matrix band `are ordinarily quite widely separated, it being merely necessary that'the part of the band whichvcrosses the cavity shall be drawn into conformity with the tooth. But my `improved holder also differs from the lorthodontia clamps heretofore used in that -it is adapted to fulcrum von the tooth withv the holder extending substantially 'at a tangent .tothe surface upon which it fulcrums, after rwhich the holder may be swung through an Yangle of Vnearly900, andr caused to exert a `powerful drawing pressure upon thebands. Thev holder will then retain its position with considerable stability .during the next burnishing operations, and in this respect also .it differs from the holders lheretofore used lin orthodontia work., The swinging movements also-tend'to displace and `distort a temporary filling, such as Wax when the clamp isused for inlay work, `so that vperfeet contours and .absolute conformity-to a cavity in a tooth, or its root, are not obtainable.

reason of the factth'at the holder is supported in a position Where it will interfere vto a minimum extent with the Work` of the dentist.

A further, although secondary, object of my invention Vis to'provide means whereby the holder may be operated as a lever.V to draw a band tightly around a tooth, in order Patented Aug. 3;!1920'.

kMy improvement, however, enables me to to pressa wax filling forcibly into proximal Y cavities, and thus secure a perfect pattern from which a filling or inlay may be formed.

- My invention is also serviceable yfor pressing amalgam into such cavity, in order to Vfill the latter, and secure perfect conformity to all portions of the cavity, and perfect exterior contourinV Work.

'Smy holder as 'a lever, andl thus draw a flexible .band around the neck of the tooth at the gingival margin, the surplus wax being squeezed out, and removed.

In the drawings Y Figure 1 is a view of my improved clamp as seen from the inner side, z'. e., the side having the beveled surface.

Fig. 2 is a sectional view on line 2-2 of Fi l.

"`ig. 3 is a detail view, showing the parts in band releasing position.

Fig. 4 is a plan view showing the clamp 1 edge at Cy at the junction of this beveled Surface with'one vwall of the slot. Atv the oppositeside of the slot, the holderv is substantially semi-cylindrical in form, as shown 'at D, and this semi-cylindrical portion extends beyondfthe edge C of the beveled portion C, and terminates in lan end surface or shoulder E, at right angles to the axis of the tool, thereby forming a fulcrum edge at'F, which lies substantially in the plane of the beveled surface C, projected across the slot.

Within the holder an ordinary split rod G' servesl as a clamping member, the rear end of the rod being screw threaded, asindicated at G', whereby the rod may be actuated-by means of a sleeve nut H at the-rear end of the holder. The clarnp J is manipulated infa manner familiar' to dentists using orthodontia clamps. A vflexible band of lsilver, `or other suitable metal, is bent upon itself, and its ends inserted -between the forked end of the clamp Gr, after which the clamp is drawn backwardly by means of the sleeve nut H acting upon its threaded shank, and the endsof the .band I'are thusy drawn l'into the holder, with the side margins ofthe Yband engaged in the slot B. The intermediateA portions of the band may then be separated by any suitable tool, and shaped to yreceive the tooth to which the band is to be ap lied. Y v 'fter the band I has been applied to the tooth,y a further retraction of the screw shank G draws it about the tooth, orv about the neck thereof, afterwhich operations may be `performed within the band whichv constitutes a wall about the tooth to retain wax or other material in cavities which extend through the sidewalls of the tooth. Y.

Owing to the fact l:that the holder is bev- .eled,.as shown at C, on only one side of the slot, whereas the holder Von the other'side extends forwardly and forms a fulcrum v tension shoulder at E, substantially in a plane com- Vmon to the beveled surface, it is obvious that the holder can be used as a lever by swinging it outwardly from itsnormal position, toward a position at right angles to the jaw, whereby the end portion of the band which extends over the shoulder C will be drawn around the tooth, and in fact both ends of y theband will be drawntightly around the tooth, for the reason that the mouth of the slot tends to move away from the tooth during such lan operation. Y

If this lever action takes place after the space between the band and the tooth, or its neck, or between the band and the inner wall' of a proximal cavity, has 4been filled with Wax, it is obvious that the wax willbe pressed firmly into the cavity, or if the wax encircles the neck of the tooth, itv will be pressed firmly into conformity to the neck on all sides. Y Y

, It is also obvious that, owing to the fact that the shoulder E lies substantially the plane of the beveled surface C, the holder will tend to. assume a position tangential to the circle, or circularV line occupiedby the band around the tooth when the ,sleeve nut lH is adjusted to draw the holder into forcible contacter-close contact with the tooth. H

-It will be understood that the important ing the holder at one side of the slot farther than it extends on the other side, and also feature of my. invention consists inextendside of the'toolrbeveled in a plane substan-` tially including the fulcrum shoulder.::

OwingDto the fact that the'end ofthe excut s uare across, thereby providing an? end wall substantially at right angles `to the of the portion D of the holderV is plane of the slot, a flat bearing surface is.

vprovided for contactwith the tooth, or its encircling band, upon completion of the drawing operation developed by the. oscillation of the lever. This is a limiting factor Vof considerable importance, although' it vdoes not limit lthe. ultimate possible drawing action, for the reason that the tool can'be readjusted andthe clamp retracted, after lan initial operation of vtheflever,`-in,order to draw the band I farther into. the slotB, preparatory to a second manipulation of the lever. The necessity for this, however, Vwill. Y

seldom occur in practice. Another advantagesecured by the extension of the semi-cylindrical portion Dv is i that it facilitates burnishing operationsV along the meeting portions of the band, and

f in the vicinity thereof, the burnishing vtool being passed over the shoulder C?, andV drawn intothe slot, or partially into the slot,

along they inner vface of rthe extension, lthe Vopposite face of the burnishing tool` being pressed by the holder against the tooth, the

holder being nsed as a lever. The tangential position of the holder also facilitates a similar burnishing operation on the opposite side, the burnishing tool being interposed between the beveled surface and the tooth.

I claim l. A beveled clamp for banding teeth, comprising the combination with an adjustable band engaging clamp, a holder adapted to receive the clamp, and provided with an open ended slot into which a band engaged by the clamp may be drawn, said holder having a beveled surface at one side, converging in the direction of the slot, and a fnlcrum shoulder on the other side, substantially in a plane common to the'beveled surface. Y

2. A holder for an orthodontia clamp, having a slotted end, adapted to receive both ends of a flexible tooth encircling band,

and an extension at one side of. the slot f adapted to serve as a fulcruml to facilitatedrawing the band tightly about the tooth.

3. A holder for an orthodontia band, having means for clamping together theV ends of a flexible tooth encircling band, said holder having means for forming an acute angle bend in one end portion of the band and holding such end portion adjacent the apex of the angle in contact with a tooth on one side and in contact with the other end portion on the other side. Y

In testimony whereof I aliix my signature in the presence of two witnesses.

LoUIs P. WAGNER.

O. C. WEBER. 

